It’s expected the more than 650 MTA officers on the job across 5,000 square miles and 14 counties in New York and Connecticut will carry the opioid overdose antidote naloxone, sold under the brand name Narcan.

Naloxone, sold under the brand name Narcan, gives emergency responders time to revive victims, even those who have stopped breathing. The antidote can be used with any drug with opioids, including prescription painkillers.